Artiuh, A., Maksimenko, V., & Tolstoluzskaya, E. (2021). Research of the computer model of the web service for testing knowledge. Bulletin of V.N. Karazin Kharkiv National University, Series «Mathematical Modeling. Information Technology. Automated Control Systems», 52, 12-18. https://doi.org/10.26565/2304-6201-2021-52-02